WO1995003103A1 - Arrangement for reducing the humidity content of a gaseous medium - Google Patents

Arrangement for reducing the humidity content of a gaseous medium Download PDF

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Publication number
WO1995003103A1
WO1995003103A1 PCT/IB1994/000230 IB9400230W WO9503103A1 WO 1995003103 A1 WO1995003103 A1 WO 1995003103A1 IB 9400230 W IB9400230 W IB 9400230W WO 9503103 A1 WO9503103 A1 WO 9503103A1
Authority
WO
WIPO (PCT)
Prior art keywords
evaporator
gas
container
housing
gaseous medium
Prior art date
Application number
PCT/IB1994/000230
Other languages
German (de)
French (fr)
Inventor
Mauro Salvagno
Mario Polenta
Original Assignee
Hiross International Corporation B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hiross International Corporation B.V. filed Critical Hiross International Corporation B.V.
Priority to AT94921075T priority Critical patent/ATE160705T1/en
Priority to CA002168135A priority patent/CA2168135A1/en
Priority to US08/591,639 priority patent/US5715696A/en
Priority to JP7505041A priority patent/JPH09500575A/en
Priority to EP94921075A priority patent/EP0711192B1/en
Priority to DE59404737T priority patent/DE59404737D1/en
Priority to AU71942/94A priority patent/AU673280B2/en
Priority to KR1019960700357A priority patent/KR960703649A/en
Publication of WO1995003103A1 publication Critical patent/WO1995003103A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0033—Other features
    • B01D5/0039—Recuperation of heat, e.g. use of heat pump(s), compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • F28D7/0091—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium the supplementary medium flowing in series through the units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0038—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for drying or dehumidifying gases or vapours
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention relates to a device for reducing the moisture content of a gaseous medium, in particular air, with a cooling circuit.
  • Known devices of this type are equipped with evaporators, in which the gaseous medium is passed through a tube coil through which a coolant flows, and is thereby cooled, as a result of which a portion of the moisture content precipitates as condensate.
  • Such devices have a poor efficiency and require very large, complex constructions to fulfill their function, which due to their construction integrated in the cooling circuit of a cooling system can only be subjected to maintenance or repair with difficulty.
  • the object of the invention is therefore to provide a device of the type mentioned with high efficiency and therefore relatively smaller overall dimensions. Another object of the invention is to enable simple dismantling of the device and its separation from the rest of the system during maintenance work or repairs.
  • a cooling system known per se, in that it has an evaporator formed from a hollow body, the evaporator being one of a coolant, such as e.g. Freon, flowable pipe coil and a series of mutually parallel ribs, preferably oriented normal to the pipe coil, between which the gaseous medium in the form of a gas flow is guided in a first direction, the hollow body being enclosed by an outer housing to form a space is through which interspace the gas flow is led in a second direction opposite to the first.
  • a coolant such as e.g. Freon, flowable pipe coil and a series of mutually parallel ribs, preferably oriented normal to the pipe coil
  • a condensate separator is arranged in the area of the intermediate space between the hollow body and the housing, which is preferably formed by an annular arrangement of, for example, corrosion-resistant steel fibers.
  • a condensate separator retains the liquid droplets, for example water droplets, which precipitate in the gas stream and removes a part of the moisture content from the gas flowing through it.
  • a first condensate drain trap connected to the condensate separator is arranged on the housing. Such a condensate drain trap collects the liquid separated by the condensate separator and passes it on to a drain, thereby avoiding a disadvantageous backflow of the precipitated liquid droplets in the opposite direction to the media flow.
  • a tubular opening with a flange attachment is connected to the housing, in which the gas flow is guided in the second direction opposite to the first. In this way, the gas stream that has already passed through the evaporator in two directions can leave it again.
  • the housing is tubular, one end of which is closed by a hood and at the other end a flange is formed, which can be closed by an end piece or connected to a heat exchanger.
  • An exchanger connected to the evaporator in this way pre-cools the gas stream to be dried and reheats the gas stream coming out of the evaporator, so that the evaporator has to cope with a smaller temperature difference and the gas stream, which has a reduced moisture content, leaves the device again heated after it has cooled down .
  • the tubes of the tube assembly are arranged parallel to one another and parallel to the longitudinal direction of the container, and that the tube assembly has end plates at both ends of the container opposite them, inside the tubes a gas flow in the first direction and outside the pipes a gas flow in the second, opposite to the first direction.
  • the gas entering the exchanger is pre-cooled by the cooled gas stream from the evaporator.
  • the pipe assembly with ribs is arranged at a distance from the walls of the container and screens for forcing a gas line running parallel to the ribs in a serpentine way. Are arranged. This results in a correspondingly long way for the gas stream coming from the evaporator to be transferred to the gas stream guided in the opposite direction within the tubes of the tube assembly, and the cooling thereof is effected.
  • a preferred embodiment of the invention is that a gas outlet opening is provided on the container.
  • a filter is arranged in the area of the gas inlet mouth. This removes the foreign particles present in the gas stream entering the exchanger.
  • an embodiment of the invention is that a second condensate drain trap is provided in the area of the connecting flange to the evaporator.
  • a drain trap arranged in this way collects the liquid condensed from the gas stream after the exchanger as a result of cooling and directs it to a drain.
  • the moisture contained in the gaseous medium in most cases consists of water vapor, but any other liquid vapors are included in the scope of the invention.
  • 1 shows a schematic view of an embodiment of a device according to the invention
  • 2 shows a detailed view of an embodiment of a gas / gas heat exchanger.
  • the gaseous medium consists of an air stream which, before entering the device according to the invention, has a high moisture content consisting of water vapor.
  • the invention is not limited in this regard. Any gaseous medium with a moisture content from any vapors can be dried.
  • the evaporator 11 is enclosed by an outer, tubular metal housing 12 which is closed at one end with a hood 13 and at its other end is connected to the heat exchanger 15 via a flange 14.
  • the evaporator 11 itself is formed from an elongated hollow body 16 which, along its length, contains a pipe coil 17 made of copper, in which the coolant, in this case freon, is led out of the cooling system 10.
  • the hollow body 16 contains a series of mutually parallel longitudinal ribs 18 made of aluminum, which are arranged transversely to the pipe coil 17 and between which a coil coming from the exchanger mender air flow is guided in the direction of arrow 19.
  • the hollow body 16, which is fastened to the tubular metal housing 12 with a system of screws and a linkage (not shown), can be pulled out of the latter for maintenance purposes or repair work. Guides are also provided for optimal positioning of the hollow body 16.
  • a condensate separator 21 is arranged in the interior of the housing 12, which is formed from an annular arrangement of corrosion-resistant steel fibers and which retains the condensed water droplets which form after the ribs 18 have passed through and during the reversal of the direction of the air flow due to its cooling .
  • a first condensate drain trap 22 attached to the housing 12 catches the water retained by the separator 21, which can be further discharged via a valve.
  • At the end of the housing 12 opposite the hood 13 is in the region of the flange
  • a tubular opening 23 with a flange is arranged, through which the air flow guided through the intermediate space 20 can exit and which is connected to a corresponding opening 24 with a flange which leads into the exchanger 15.
  • the heat exchanger 15 is enclosed by a container 25, which has at one end a connecting flange 26 matching the flange 14 and at its other end an inlet hood 27 with an air inlet opening 28 for the air inlet.
  • the exchanger 15 itself consists of a tube unit 29, which is housed in a box-shaped body 29a.
  • the assembly 29 is composed of aluminum tubes 30 with inner three-layer ribs, which are arranged parallel to one another and parallel to the longitudinal direction of the container 25, and a series of ribs 31 made of copper and transverse to the longitudinal direction, which cross the former.
  • the tubular assembly 29 has plates 32 and 33, which close off the two end regions of the container 25 with respect to the inner part located therebetween.
  • An air flow is guided in the interior of the tubes 30 in the direction of the arrows 34, while an air flow coming from the evaporator 11 via the openings 23 and 24 is guided in the opposite direction.
  • the tube assembly 29 is arranged at a distance from the wall of the container 25.
  • diaphragms 35 are provided which force the air flow onto a serpentine path parallel to the ribs 31.
  • An air outlet opening 36 is also provided on the container 25, from which the air flow is guided to the outside after passing through the areas divided by the screens 35.
  • a filter 37 which retains the impurities which may be present in the incoming air flow, while in the area in front of the connecting flange 26 a second condensate drainage case 38 is provided for the water droplets precipitating in the air flow.
  • the air / air heat exchanger 15 uses the air flow coming from the evaporator 11, which has already been cooled, to pre-cool the air via the mouth 28 entering air flow, which results in a considerable increase in efficiency compared to known devices of this type. Thereafter, in the interior of the evaporator 11, the air flow is further cooled down to the dew point by the evaporation of the freon in the coil 17. At the same time, the air emerging from the evaporator 11 is reheated as it passes through the exchanger 15 on the outside of the tube assembly 29 . With the help of the exchanger 15, the air thus reaches the evaporator 11 at a much lower temperature, as a result of which the cooling circuit 10 is subjected to less stress in its cooling capacity. All parts within the facility are lined with a corrosion-protective epoxy varnish that is resistant to the condensate that falls out.
  • FIG. 2 shows an air / air heat exchanger according to the invention with a box-shaped body 29a and the tube assembly 29 with the transverse ribs 31 enclosed by it.
  • the tubes 30 made of aluminum run parallel to one another and in the longitudinal direction of the body 29a and perpendicular to the ribs 31.
  • the air flow which enters the exchanger 15 via the mouth 28 (not shown) at 28a and is passed through the interior of the tubes again in the region of the flange 26, not shown, at 26a and is supplied to the evaporator 11.
  • an air stream which has already passed the evaporator, comes through the opening 24 into the part of the body 29a which is closed off by the end plates 32, 33 with respect to the inlet and outlet region of the tubes 30 and is always parallel in this manner in a serpentine manner led to a part of the ribs 31, this path being forced through correspondingly arranged screens 35.
  • the air stream which has already dried from the evaporator 11 transfers its coldness via the fins to the air stream guided in the tubes 30, which air stream is thus pre-cooled.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Geometry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Drying Of Gases (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

An arrangement for reducing the humidity content of a gaseous medium, in particular air, has a cooling circuit. In order to increase its efficiency, an arrangement of this type is linked to a cooling system (10) known per se and has an evaporator (11) designed as a hollow body (16). The evaporator (11) has a pipe coil (17) through which a coolant, for example freon, can flow and a series of parallel ribs (18), perferably perpendicularly to the pipe coil (17), between which the gaseous medium is led in a first direction as a gas stream. The hollow body (16) is enclosed in an outer housing (12), forming an intermediate space (20) in which the gas stream is led in a second direction opposite to the first.

Description

Einrichtung zur Verringerung des Feuchtigkeitsgehalts eines gasförmigen Mediums Device for reducing the moisture content of a gaseous medium
Die Erfindung betrifft eine Einrichtung zur Verringerung des Feuchtigkeitsge¬ halts eines gasförmigen Mediums, insbesonders Luft, mit einem Kühlkreislauf. Bekannte Ein¬ richtungen dieser Art sind mit Verdampfern ausgestattet, in welchen das gasförmige Medium über eine von einem Kühlmittel durchströmten Rohrschlange geführt und dabei abgekühlt wird, wodurch ein Anteil des Feuchtigkeitsgehalts als Kondensat ausfallt.The invention relates to a device for reducing the moisture content of a gaseous medium, in particular air, with a cooling circuit. Known devices of this type are equipped with evaporators, in which the gaseous medium is passed through a tube coil through which a coolant flows, and is thereby cooled, as a result of which a portion of the moisture content precipitates as condensate.
Derartige Einrichtungen weisen eine schlechten Wirkungsgrad auf und benöti¬ gen zur Erfüllung ihrer Funktion sehr große, aufwendige Konstruktionen, die dabei aufgrund ihrer in den Kühlkreislauf einer Kühlanlage integrierten Bauweise nur schwer einer Wartung oder einer Reparatur unterzogen werden können.Such devices have a poor efficiency and require very large, complex constructions to fulfill their function, which due to their construction integrated in the cooling circuit of a cooling system can only be subjected to maintenance or repair with difficulty.
Aufgabe der Erfindung ist es daher, eine Einrichtung der eingangs genannten Art mit hohem Wirkungsgrad und dadurch verhältnismäßig kleinere Gesamtabmessimgen zu schaffen. Eine weitere Aufgabe der Erfindung ist es, eine einfache Demontage der Einrich¬ tung und deren Trennung von der übrigen Anlage bei Wartungsarbeiten oder Reparaturen zu ermöglichen.The object of the invention is therefore to provide a device of the type mentioned with high efficiency and therefore relatively smaller overall dimensions. Another object of the invention is to enable simple dismantling of the device and its separation from the rest of the system during maintenance work or repairs.
Dies wird erfindungsgemäß dadurch erreicht, daß sie mit einer an sich be¬ kannten Kühlanlage verbunden ist, daß sie einen aus einem Hohlkörper gebildeten Verdamp¬ fer aufweist, wobei der Verdampfer eine von einem Kühlmittel, wie z.B. Freon, durchström¬ bare Rohrschlange und eine Reihe von untereinander parallelen, vorzugsweise normal zur Rohrschlange ausgerichteten Rippen, zwischen denen das gasförmige Medium in Form eines Gasstroms in einer ersten Richtung gefuhrt ist, umfaßt, wobei der Hohlkörper unter Bildung eines Zwischenraumes von einem äußeren Gehäuse umschlossen ist, durch welchen Zwi¬ schenraum der Gasstrom in einer zweiten, zur ersten entgegengesetzten Richtung geführt ist. Eine derartige erzwungene Umkehrung der Richtung des Gasstroms begünstigt die Konden¬ sierung der im gasförmigen Medium enthaltenen Feuchtigkeit und erhöht somit die Effizienz der Gastrocknung.This is achieved according to the invention in that it is connected to a cooling system known per se, in that it has an evaporator formed from a hollow body, the evaporator being one of a coolant, such as e.g. Freon, flowable pipe coil and a series of mutually parallel ribs, preferably oriented normal to the pipe coil, between which the gaseous medium in the form of a gas flow is guided in a first direction, the hollow body being enclosed by an outer housing to form a space is through which interspace the gas flow is led in a second direction opposite to the first. Such a forced reversal of the direction of the gas flow favors the condensation of the moisture contained in the gaseous medium and thus increases the efficiency of the gas drying.
Nach einer weiteren Variante kann vorgesehen sein, daß im Bereich des Zwi¬ schenraumes zwischen dem Hohlkörper und dem Gehäuse ein Kondensatabscheider angeord¬ net ist, der vorzugsweise durch eine ringförmige Anordnung aus z.B. korrosionsbeständigen Stahlfasern gebildet ist. Ein derartiger Kondensatabscheider hält die im Gasstrom ausfallen¬ den Flüssigkeitströpfchen, z.B. Wassertröpfchen, zurück und entnimmt dem durch ihn strö¬ menden Gas einen Teil des Feuchtigkeitsgehalts. Nach einem weiteren Merkmal der Erfindung kann vorgesehen sein, daß am Gehäuse eine mit dem Kondensatabscheider verbundene, erste Kondensat-Abflußfalle ange¬ ordnet ist. Eine derartige Kondesat- Abflußfalle sammelt die vom Kondensatabscheider abge¬ schiedene Flüssigkeit und leitet sie zu einem Abfluß weiter, wodurch ein nachteiliges Zurück¬ fließen der ausgefallenen Flüssigkeitströpfchen in Gegenrichtung zum Medienstrom vermie¬ den wird.According to a further variant, it can be provided that a condensate separator is arranged in the area of the intermediate space between the hollow body and the housing, which is preferably formed by an annular arrangement of, for example, corrosion-resistant steel fibers. Such a condensate separator retains the liquid droplets, for example water droplets, which precipitate in the gas stream and removes a part of the moisture content from the gas flowing through it. According to a further feature of the invention it can be provided that a first condensate drain trap connected to the condensate separator is arranged on the housing. Such a condensate drain trap collects the liquid separated by the condensate separator and passes it on to a drain, thereby avoiding a disadvantageous backflow of the precipitated liquid droplets in the opposite direction to the media flow.
In weiterer Ausbildung der Erfindung kann vorgesehen sein, daß mit dem Ge¬ häuse eine rohrförmige Öffnung mit Flanschansatz verbunden ist, in dem der Gasstrom in der zur ersten entgegengesetzten, zweiten Richtung geführt ist. Auf diese Art kann der Gasstrom, der den Verdampfer bereits in zwei Richtungen durchlaufen hat, diesen wieder verlassen.In a further embodiment of the invention it can be provided that a tubular opening with a flange attachment is connected to the housing, in which the gas flow is guided in the second direction opposite to the first. In this way, the gas stream that has already passed through the evaporator in two directions can leave it again.
Zufolge einer weiteren vorteilhaften Ausbildung der Erfindung ist das Gehäuse rohrförmig ausgebildet, wobei ein Ende desselben durch eine Haube abgeschlossen und an dessen anderem Ende ein Flansch ausgebildet ist, welcher durch ein Endstück verschließbar oder mit einem Wärmeaustauscher verbindbar ist. Auf diese Art wird eine einfache Kon¬ struktion realisiert, bei der auch Elemente zur weiteren Verbesserung des Wirkungsgrades angeschlossen werden können und wodurch eine problemlose Wartung des Verdampfers möglich ist.According to a further advantageous embodiment of the invention, the housing is tubular, one end of which is closed by a hood and at the other end a flange is formed, which can be closed by an end piece or connected to a heat exchanger. In this way, a simple construction is realized, in which elements for further improving the efficiency can also be connected and which enables problem-free maintenance of the evaporator.
Nach einer weiteren Variante kann vorgesehen sein, daß sie einen Gas/Gas- Wärmeaustauscher umfaßt, welcher aus einem ein Rohraggregat mit Rippen umschließenden Behälter gebildet ist, an dessen einem Ende ein Verbindungsflansch zum Verdampfer und an dessen anderem Ende eine Lufteintrittsmündung vorgesehen ist. Ein derartig mit dem Ver¬ dampfer verbundener Austauscher kühlt den zu trocknenden Gasstrom vor, und erwärmt den aus dem Verdampfer kommenden Gasstrom wieder, sodaß der Verdampfer eine geringere Temperaturdifferenz zu bewältigen hat und der in seinem Feuchtigkeitsgehalt verringerte Gasstrom die Einrichtung nach seiner Abkühlung wieder erwärmt verläßt.According to a further variant it can be provided that it comprises a gas / gas heat exchanger which is formed from a container enclosing a tube unit with fins, at one end of which a connecting flange to the evaporator and at the other end of which an air inlet opening is provided. An exchanger connected to the evaporator in this way pre-cools the gas stream to be dried and reheats the gas stream coming out of the evaporator, so that the evaporator has to cope with a smaller temperature difference and the gas stream, which has a reduced moisture content, leaves the device again heated after it has cooled down .
Gemäß einer weiteren vorteilhaften Ausbildung der Erfindung kann vorgese¬ hen sein, daß die Rohre des Rohraggregats zueinander parallel und parallel zur Behälterlängs¬ richtung angeordnet sind, daß das Rohraggregat an seinen beiden Enden den Behälter gegen¬ über diesen abschließende Endplatten aufweist, wobei innerhalb der Rohre ein Gasstrom in erster Richtung und außerhalb der Rohre ein Gasstrom in zweiter, zur ersten entgegengesetz¬ ter Richtung geführt ist. Auf diese Weise wird durch den abgekühlten Gasstrom aus dem Verdampfer das in den Austauscher eintretende Gas vorgekühlt.According to a further advantageous embodiment of the invention, it can be provided that the tubes of the tube assembly are arranged parallel to one another and parallel to the longitudinal direction of the container, and that the tube assembly has end plates at both ends of the container opposite them, inside the tubes a gas flow in the first direction and outside the pipes a gas flow in the second, opposite to the first direction. In this way, the gas entering the exchanger is pre-cooled by the cooled gas stream from the evaporator.
In weiterer Ausbildung der Erfindung kann vorgesehen sein, daß das Rohrag¬ gregat mit Rippen von den Wänden des Behälters beabstandet angeordnet ist und Blenden zum Erzwingen eines auf schlangenförmigem Weg parallel zu den Rippen verlaufenden Gas- Stroms angeordnet sind. Daraus ergibt sich für den vom Verdampfer kommenden Gasstrom ein entsprechend langer Weg auf dem Kälte auf den innerhalb der Rohre des Rohraggregats in Gegenrichtung geführten Gasstrom übertragen und dessen Abkühlung bewirkt wird.In a further embodiment of the invention it can be provided that the pipe assembly with ribs is arranged at a distance from the walls of the container and screens for forcing a gas line running parallel to the ribs in a serpentine way. Are arranged. This results in a correspondingly long way for the gas stream coming from the evaporator to be transferred to the gas stream guided in the opposite direction within the tubes of the tube assembly, and the cooling thereof is effected.
Eine bevorzugte Ausbildung der Erfindung besteht darin, daß an dem Behälter eine Gasaustrittsmündung vorgesehen ist.A preferred embodiment of the invention is that a gas outlet opening is provided on the container.
Nach einer weiteren Variante kann vorgesehen sein, daß im Bereich der Gaseintrittsmündung ein Filter angeordnet ist. Dadurch werden die im in den Austauscher eintretenden Gasstrom vorhandenen Fremdpartikel aus diesem entfernt.According to a further variant it can be provided that a filter is arranged in the area of the gas inlet mouth. This removes the foreign particles present in the gas stream entering the exchanger.
Schließlich besteht eine Ausfuhrungsform der Erfindung darin, daß im Bereich des Verbindungsflansches zum Verdampfer eine zweite Kondensat-Abflußfalle vorgesehen ist. Eine derart angeordnete Abflußfalle sammelt die nach dem Austauscher infolge der Ab¬ kühlung aus dem Gasstrom kondensierte Flüssigkeit und leitet sie einem Abfluß zu. Die im gasförmigen Medium enthaltene Feuchtigkeit besteht in den meisten Fällen aus Wasser¬ dampf, es sind aber jegliche andere Flüssigkeitsdämpfe im Umfang der Erfindung enthalten.Finally, an embodiment of the invention is that a second condensate drain trap is provided in the area of the connecting flange to the evaporator. A drain trap arranged in this way collects the liquid condensed from the gas stream after the exchanger as a result of cooling and directs it to a drain. The moisture contained in the gaseous medium in most cases consists of water vapor, but any other liquid vapors are included in the scope of the invention.
Die Erfindung wird im folgenden anhand der angeschlossenen Zeichnungen näher beschrieben.The invention is described below with reference to the accompanying drawings.
Es zeigen Fig.1 eine schematische Ansicht einer Ausfuhrungsform einer erfin¬ dungsgemäßen Einrichtung; Fig.2 eine detaillierte Ansicht einer Ausfuhrungsform eines Gas/Gas- Wärmeaustauschers.1 shows a schematic view of an embodiment of a device according to the invention; 2 shows a detailed view of an embodiment of a gas / gas heat exchanger.
In Fig. 1 ist eine erfindungsgemäße Einrichtung mit einem Kühlkreislauf dar¬ gestellt, welche einen mit einer an sich bekannten Kühlanlage 10 verbundenen Verdampfer 11 und einen an diesen anschließenden Gas/Gas- Wärmeaustauscher 15 umfaßt. In diesem Ausführungsbeispiel besteht das gasförmige Medium aus einem Luftstrom, der vor dem Ein¬ tritt in die erfindungsgemäße Einrichtung einen hohen Feuchtigkeitsgehalt bestehend aus Wasserdampf aufweist. Die Erfindung ist in dieser Hinsicht jedoch nicht eingeschränkt. Es kann jedes beliebige gasförmige Medium mit einem Feuchtigkeitsgehalt aus beliebigen Dämpfen einer Trocknung unterzogen werden. Der Verdampfer 11 ist von einem äußeren, rohrförmigen Metallgehäuse 12 umschlossen, welches an seinem einen Ende mit einer Haube 13 abgeschlossen und an seinem anderem Ende über einen Flansch 14 mit dem Wärmeaustau¬ scher 15 in Verbindung steht. Der Verdampfer 11 selbst wird aus einem länglichen Hohlkör¬ per 16 gebildet, der entlang seiner Länge eine Rohrschlange 17 aus Kupfer beinhaltet, in wel¬ cher das Kühlmittel, in diesem Fall Freon, aus der Kühlanlage 10 geführt ist. Der Hohlkörper 16 beinhaltet eine Reihe von untereinander parallelen Längsrippen 18 aus Aluminium, die quer zur Rohrschlange 17 angeordnet sind und zwischen denen ein vom Austauscher kom- mender Luftstrom in Richtung des Pfeils 19 geführt ist. Der Hohlkörper 16, der mit einem nicht dargestellten System aus Schrauben und einem Gestänge am rohrförmigen Metallge¬ häuse 12 befestigt ist, kann zu Wartungszwecken oder Reparaturarbeiten aus diesem gezogen werden. Weiters sind Führungen zur optimalen Positionierung des Hohlkörpers 16 vorgese¬ hen. Nachdem der Luftstrom zwischen den Längsrippen 18 hindurchgetreten ist, wird er an der Innenseite der Haube 13 in seiner Richtung umgekehrt und in dem zwischen dem Ge¬ häuse 12 und dem Hohlkörper 16 gebildeten Zwischenraum 20 in der zur Richtung 19 ent¬ gegengesetzten Richtung wieder entlang des Hohlkörpers 16 geführt. Im Bereich der Haube1 shows a device according to the invention with a cooling circuit, which comprises an evaporator 11 connected to a cooling system 10 known per se and a gas / gas heat exchanger 15 connected to it. In this exemplary embodiment, the gaseous medium consists of an air stream which, before entering the device according to the invention, has a high moisture content consisting of water vapor. However, the invention is not limited in this regard. Any gaseous medium with a moisture content from any vapors can be dried. The evaporator 11 is enclosed by an outer, tubular metal housing 12 which is closed at one end with a hood 13 and at its other end is connected to the heat exchanger 15 via a flange 14. The evaporator 11 itself is formed from an elongated hollow body 16 which, along its length, contains a pipe coil 17 made of copper, in which the coolant, in this case freon, is led out of the cooling system 10. The hollow body 16 contains a series of mutually parallel longitudinal ribs 18 made of aluminum, which are arranged transversely to the pipe coil 17 and between which a coil coming from the exchanger mender air flow is guided in the direction of arrow 19. The hollow body 16, which is fastened to the tubular metal housing 12 with a system of screws and a linkage (not shown), can be pulled out of the latter for maintenance purposes or repair work. Guides are also provided for optimal positioning of the hollow body 16. After the air flow has passed between the longitudinal ribs 18, it is reversed in its direction on the inside of the hood 13 and in the space 20 formed between the housing 12 and the hollow body 16 in the direction opposite to the direction 19 again along the direction Hollow body 16 out. In the area of the hood
13 ist im Inneren des Gehäuses 12 ein Kondensatabscheider 21 angeordnet, der aus einer ringförmigen Anordnung aus korrosionsbeständigen Stahlfasern gebildet ist und der die kon¬ densierten Wassertröpchen, die sich nach dem Durchlaufen der Rippen 18 und während der Richtungsumkehr des Luftstroms zufolge seiner Abkühlung bilden, zurückhalten. Eine am Gehäuse 12 angebrachte, erste Kondensat- Abflußfalle 22 fängt das durch den Abscheider 21 zurückgehaltenen Wasser auf, welches über ein Ventil weiter abgeleitet werden kann. An dem der Haube 13 gegenüberliegenden Ende des Gehäuses 12 ist im Bereich des Flansches13, a condensate separator 21 is arranged in the interior of the housing 12, which is formed from an annular arrangement of corrosion-resistant steel fibers and which retains the condensed water droplets which form after the ribs 18 have passed through and during the reversal of the direction of the air flow due to its cooling . A first condensate drain trap 22 attached to the housing 12 catches the water retained by the separator 21, which can be further discharged via a valve. At the end of the housing 12 opposite the hood 13 is in the region of the flange
14 eine rohrförmige Öffnung 23 mit Flansch angeordnet, durch die der durch den Zwischen¬ raum 20 geführte Luftstrom austreten kann und die mit einer korrespondierenden Öffnung 24 mit Flansch, die in den Austauscher 15 führt, verbunden ist. Der Wärmeaustauscher 15 ist von einem Behälter 25 umschlossen, welcher an seinem einen Ende einen zum Flansch 14 passenden Verbindungsflansch 26 und an seinem anderen Ende eine Eintrittshaube 27 mit einer Lufteintrittsöffnung 28 zum Lufteintritt aufweist. Der Austauscher 15 selbst besteht aus einem Rohraggregat 29, welches in einem kastenförmigen Körper 29a untergebracht ist. Das Aggregat 29 setzt sich aus Aluminiumrohren 30 mit inneren dreischichtigen Rippen, die par¬ allel zueinander und parallell zur Längsrichtung des Behälters 25 angeordnet sind, und einer Reihe von quer zur Längsrichtung stehenden Rippen 31 aus Kupfer, welche erstere kreuzen, zusammen. An seinen Enden weist das Rohraggregat 29 Platten 32 und 33 auf, die die beiden Endbereiche des Behälters 25 gegenüber dessen dazwischenliegendem Innenteil abschließen. Im Inneren der Rohre 30 ist ein Luftstrom in Richtung der Pfeile 34 geführt, während außer¬ halb ein aus dem Verdampfer 11 über die Öffnungen 23 und 24 kommender Luftstrom in dazu entgegengesetzter Richtung geführt ist. Um außerhalb der Rohre 30 einen Luftstrom durchzulassen, ist das Rohraggregat 29 von der Wandung des Behälters 25 distanziert ange¬ ordnet. Weiters sind Blenden 35 vorgesehen, die den Luftstrom auf eine schlangenförmige Bahn parallel zu den Rippen 31 Weg zwingen. Am Behälter 25 ist ferner eine Luftaustritts¬ mündung 36 vorgesehen, aus der der Luftstrom nach Durchlaufen der durch die Blenden 35 abgeteilten Bereiche nach außen geführt wird. Im Bereich der Eintrittshaube 27 für den Luft¬ eintritt ist ein Filter 37 angebracht, der die eventuell im eintretenden Luftstrom vorhandenen Verunreinigungen zurückhält, während im Bereich vor dem Verbindungsflansch 26 eine zweite Kondensat- Abflußfallle 38 für die im Luftstrom ausfallenden Wassertröpfchen vorge¬ sehen ist. Der Luft/Luft- Wärmeaustauscher 15 nutzt den aus dem Verdampfer 11 kommenden Luftstrom, der bereits eine Abkühlung erfahren hat, zur Vorkühlung des über die Mündung 28 eintretenden Luftstroms, wodurch sich ein beträchtliche Erhöhung des Wirkungsgrades gegenüber bekannten Einrichtungen dieser Art einstellt. Danach erfolgt im Inneren des Ver¬ dampfers 11 die weitere Abkühlung des Luftstroms bis zum Taupunkt durch das Verdampfen des Freons in der Rohrschlange 17. Gleichzeitig wird die aus dem Verdampfer 11 austretende Luft beim Durchgang durch den Austauscher 15 auf der Außenseite des Rohraggregats 29 wieder erhitzt. Mit Hilfe des Austauschers 15 erreicht somit die Luft den Verdampfer 11 mit einer viel tieferen Temperatur, wodurch der Kühlkreislauf 10 in seiner Kühlleistung weniger beansprucht wird. Alle innerhalb der Einrichtung gelegenen Teile sind mit einem korrosions- schützenden Epoxyfirnis ausgekleidet, der gegen das ausfallende Kondenswasser beständig ist.14, a tubular opening 23 with a flange is arranged, through which the air flow guided through the intermediate space 20 can exit and which is connected to a corresponding opening 24 with a flange which leads into the exchanger 15. The heat exchanger 15 is enclosed by a container 25, which has at one end a connecting flange 26 matching the flange 14 and at its other end an inlet hood 27 with an air inlet opening 28 for the air inlet. The exchanger 15 itself consists of a tube unit 29, which is housed in a box-shaped body 29a. The assembly 29 is composed of aluminum tubes 30 with inner three-layer ribs, which are arranged parallel to one another and parallel to the longitudinal direction of the container 25, and a series of ribs 31 made of copper and transverse to the longitudinal direction, which cross the former. At its ends, the tubular assembly 29 has plates 32 and 33, which close off the two end regions of the container 25 with respect to the inner part located therebetween. An air flow is guided in the interior of the tubes 30 in the direction of the arrows 34, while an air flow coming from the evaporator 11 via the openings 23 and 24 is guided in the opposite direction. In order to allow an air flow to pass outside the tubes 30, the tube assembly 29 is arranged at a distance from the wall of the container 25. Furthermore, diaphragms 35 are provided which force the air flow onto a serpentine path parallel to the ribs 31. An air outlet opening 36 is also provided on the container 25, from which the air flow is guided to the outside after passing through the areas divided by the screens 35. In the area of the inlet hood 27 for the air inlet there is a filter 37 which retains the impurities which may be present in the incoming air flow, while in the area in front of the connecting flange 26 a second condensate drainage case 38 is provided for the water droplets precipitating in the air flow. The air / air heat exchanger 15 uses the air flow coming from the evaporator 11, which has already been cooled, to pre-cool the air via the mouth 28 entering air flow, which results in a considerable increase in efficiency compared to known devices of this type. Thereafter, in the interior of the evaporator 11, the air flow is further cooled down to the dew point by the evaporation of the freon in the coil 17. At the same time, the air emerging from the evaporator 11 is reheated as it passes through the exchanger 15 on the outside of the tube assembly 29 . With the help of the exchanger 15, the air thus reaches the evaporator 11 at a much lower temperature, as a result of which the cooling circuit 10 is subjected to less stress in its cooling capacity. All parts within the facility are lined with a corrosion-protective epoxy varnish that is resistant to the condensate that falls out.
In Fig. 2 ist ein erfindungsgemäßer Luft/Luft- Wärmeaustauscher mit einem kastenförmigen Körper 29a und dem von diesem eingeschlossenen Rohraggregat 29 mit den Querrippen 31 dargestellt. Die Rohre 30 aus Aluminium verlaufen untereinander parallel und in Längsrichtung des Körpers 29a und senkrecht zu den Rippen 31. Der Luftstrom, der über die nicht dargestellte Mündung 28 bei 28a in den Austauscher 15 eintritt und durch das Innere der Rohre geführt ist, verläßt dieser wieder im Bereich des nichtdargestellten Flansches 26 bei 26a und wird dem Verdampfer 11 zugeführt. Dazu in entgegengesetzter Richtung kommt ein Luftstrom, der den Verdampfer bereits passiert hat, durch die Öffnung 24 in den durch die Endplatten 32, 33 gegenüber dem Eintritts- und dem Austrittsbereich der Rohre 30 abge¬ schlossenen Teil des Körpers 29a und wird darin serpentinenartig immer parallel zu einem Teil der Rippen 31 geführt, wobei dieser Weg durch entsprechend angeordnete Blenden 35 erzwungen wird. Auf diesem Weg überträgt der bereits getrocknete Luftstrom aus dem Ver¬ dampfer 11 seine Kälte über die Rippen auf den in den Rohren 30 geführten Luftstrom, der somit vorgekühlt wird. FIG. 2 shows an air / air heat exchanger according to the invention with a box-shaped body 29a and the tube assembly 29 with the transverse ribs 31 enclosed by it. The tubes 30 made of aluminum run parallel to one another and in the longitudinal direction of the body 29a and perpendicular to the ribs 31. The air flow which enters the exchanger 15 via the mouth 28 (not shown) at 28a and is passed through the interior of the tubes again in the region of the flange 26, not shown, at 26a and is supplied to the evaporator 11. In addition, in the opposite direction, an air stream, which has already passed the evaporator, comes through the opening 24 into the part of the body 29a which is closed off by the end plates 32, 33 with respect to the inlet and outlet region of the tubes 30 and is always parallel in this manner in a serpentine manner led to a part of the ribs 31, this path being forced through correspondingly arranged screens 35. In this way, the air stream which has already dried from the evaporator 11 transfers its coldness via the fins to the air stream guided in the tubes 30, which air stream is thus pre-cooled.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Einrichtung zur Verringerung des Feuchtigkeitsgehalts eines gasförmigen Mediums, insbesonders Luft, mit einem Kühlkreislauf, dadurch gekennzeichnet, daß sie mit einer an sich bekannten Kühlanlage (10) verbunden ist, daß sie einen aus einem Hohlkörper (16) ge¬ bildeten Verdampfer (11) aufweist, wobei der Verdampfer (11) eine von einem Kühlmittel, wie z.B. Freon, durchströmbare Rohrschlange (17) und eine Reihe von untereinander paral¬ lelen, vorzugsweise normal zur Rohrschlange (17) ausgerichteten Rippen (18), zwischen denen das gasförmige Mediums in Form eines Gasstroms in einer ersten Richtung geführt ist, umfaßt, wobei der Hohlkörper (16) unter Bildung eines Zwischenraumes (20) von einem äu¬ ßeren Gehäuse (12) umschlossen ist, durch welchen Zwischenraum (20) der Gasstrom in ei¬ ner zweiten, zur ersten entgegengesetzten Richtung geführt ist.1. A device for reducing the moisture content of a gaseous medium, in particular air, with a cooling circuit, characterized in that it is connected to a cooling system (10) known per se in that it comprises an evaporator (11) formed from a hollow body (16) ), wherein the evaporator (11) is one of a coolant, such as Freon, flowable pipe coil (17) and a series of mutually parallel, preferably normal to the pipe coil (17) oriented ribs (18), between which the gaseous medium is guided in the form of a gas stream in a first direction, the hollow body (16) to form an intermediate space (20) is enclosed by an outer housing (12), through which intermediate space (20) the gas flow is guided in a second direction opposite to the first.
2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß im Bereich des Zwi¬ schenraumes (20) zwischen dem Hohlkörper (16) und dem Gehäuse (12) ein Konden¬ satabscheider (21) angeordnet ist, der vorzugsweise durch eine ringförmige Anordnung aus z.B korrosionsbeständigen Stahlfasern gebildet ist.2. Device according to claim 1, characterized in that a condensate separator (21) is arranged in the region of the inter mediate space (20) between the hollow body (16) and the housing (12), which preferably by an annular arrangement of, for example corrosion-resistant steel fibers is formed.
3. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, am Gehäuse (12) eine mit dem Kondensatabscheider (21) verbundene, erste Kondensat- Ab¬ flußfalle (22) angeordnet ist.3. Device according to one of the preceding claims, characterized in that a first condensate drain trap (22) connected to the condensate separator (21) is arranged on the housing (12).
4. Trockner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mit dem Gehäuse (12) eine rohrförmige Öffnung (23) mit Flanschansatz verbunden ist, in dem der Gasstrom in der zur ersten entgegengesetzten, zweiten Richtung geführt ist.4. Dryer according to one of the preceding claims, characterized in that with the housing (12) a tubular opening (23) is connected with a flange approach, in which the gas flow is guided in the first opposite, second direction.
5. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (12) rohrförmig ausgebildet ist, wobei ein Ende desselben durch eine Haube (13) abgeschlossen und an dessen anderem Ende ein Flansch (14) ausgebildet ist, welcher durch ein Endstück verschließbar oder mit einem Wärmeaustauscher (15) verbindbar ist.5. Device according to one of the preceding claims, characterized in that the housing (12) is tubular, one end of which is closed by a hood (13) and at the other end a flange (14) is formed, which by an end piece can be closed or connected to a heat exchanger (15).
6. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er einen Gas/Gas- Wärmeaustauscher (15) umfaßt, welcher aus einem ein Rohraggregat (29) mit Rippen (31) umschließenden Behälter (29a) gebildet ist, an dessen einem Ende ein Verbindungsflansch (26) zum Verdampfer (11) und an dessen anderem Ende eine Gasein¬ trittsmündung (28) vorgesehen ist. 6. Device according to one of the preceding claims, characterized in that it comprises a gas / gas heat exchanger (15) which is formed from a tube assembly (29) with fins (31) enclosing container (29a) at one end a connecting flange (26) to the evaporator (11) and at the other end of which a gas inlet mouth (28) is provided.
7. Einrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Rohre (30) des Rohraggregats (29) zueinander parallel und parallel zur Behälterlängsrichtung angeordnet sind, daß das Rohraggregat (29) an seinen beiden Enden den Behälter (29a) gegenüber diesen abschließende Endplatten (32, 33) aufweist, wobei innerhalb der Rohre (30) ein Luftstrom in erster Richtung und außerhalb der Rohre (30) ein Luftstrom in zweiter, zur ersten entgegen¬ gesetzter Richtung geführt ist.7. Device according to claim 6, characterized in that the tubes (30) of the tube unit (29) are arranged parallel to one another and parallel to the longitudinal direction of the container, that the tube unit (29) at both ends of the container (29 a) with respect to these end plates ( 32, 33), with an air flow in the first direction inside the pipes (30) and an air flow in the second opposite direction to the first outside the pipes (30).
8. Einrichtung nach den Ansprüchen 6 und 7, dadurch gekennzeichnet, daß das Rohr¬ aggregat (29) mit Rippen von den Wänden des Behälters (29a) beabstandet angeordnet ist und Blenden (35) zum Erzwingen eines auf schlangenförmigem Weg parallel zu den Rippen (31) verlaufenden Luftstroms angeordnet sind.8. Device according to claims 6 and 7, characterized in that the Rohr¬ aggregate (29) with ribs from the walls of the container (29 a) is arranged spaced and screens (35) for forcing a serpentine path parallel to the ribs ( 31) extending air flow are arranged.
9. Einrichtung nach einem oder mehreren der Ansprüche 6 bis 8, dadurch gekenn¬ zeichnet, daß an dem Behälter (29a) eine Luftaustrittsmündung (36) vorgesehen ist.9. Device according to one or more of claims 6 to 8, characterized gekenn¬ characterized in that an air outlet mouth (36) is provided on the container (29 a).
10. Einrichtung nach einem oder mehreren der Ansprüche 6 bis 9, dadurch gekenn¬ zeichnet, daß im Bereich der Lufteintrittsmündung (28) ein Filter (37) angeordnet ist.10. The device according to one or more of claims 6 to 9, characterized gekenn¬ characterized in that a filter (37) is arranged in the region of the air inlet mouth (28).
11. Trockner nach einem oder mehreren der Ansprüche 6 bis 10, dadurch gekennzeich¬ net, daß im Bereich des Verbindungsflansches (26) zum Verdampfer (11) eine zweite Kon¬ densat-Abflußfalle (38) vorgesehen ist. 11. Dryer according to one or more of claims 6 to 10, characterized gekennzeich¬ net that a second condensate drain trap (38) is provided in the region of the connecting flange (26) to the evaporator (11).
PCT/IB1994/000230 1993-07-26 1994-07-26 Arrangement for reducing the humidity content of a gaseous medium WO1995003103A1 (en)

Priority Applications (8)

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AT94921075T ATE160705T1 (en) 1993-07-26 1994-07-26 DEVICE FOR REDUCING THE MOISTURE CONTENT OF A GASEOUS MEDIUM
CA002168135A CA2168135A1 (en) 1993-07-26 1994-07-26 Arrangement for reducing the humidity content of a gaseous medium
US08/591,639 US5715696A (en) 1993-07-26 1994-07-26 Arrangement for reducing the humidity content of a gaseous medium
JP7505041A JPH09500575A (en) 1993-07-26 1994-07-26 Device for reducing the moisture content of a gaseous medium
EP94921075A EP0711192B1 (en) 1993-07-26 1994-07-26 Arrangement for reducing the humidity content of a gaseous medium
DE59404737T DE59404737D1 (en) 1993-07-26 1994-07-26 DEVICE FOR REDUCING THE MOISTURE CONTENT OF A GASEOUS MEDIUM
AU71942/94A AU673280B2 (en) 1993-07-26 1994-07-26 Arrangement for reducing the humidity content of a gaseous medium
KR1019960700357A KR960703649A (en) 1993-07-26 1994-07-26 ARRANGEMENT FOR REDUCING THE HUMIDITY CONTENT OF A GASEOUS MEDIUM

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AT0148893A AT398708B (en) 1993-07-26 1993-07-26 DEVICE FOR REDUCING THE MOISTURE CONTENT OF A GASEOUS MEDIUM
ATA1488/93 1993-07-26

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EP (1) EP0711192B1 (en)
JP (1) JPH09500575A (en)
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CN (1) CN1127993A (en)
AT (2) AT398708B (en)
AU (1) AU673280B2 (en)
CA (1) CA2168135A1 (en)
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US6451777B1 (en) 1998-07-17 2002-09-17 The University Of Texas Southwestern Medical Center Method for regulating hair growth
WO2010072530A2 (en) * 2008-12-23 2010-07-01 G+R Technology Group Ag Tubular heat exchanger for a device for producing polysilicon
ITPD20110076A1 (en) * 2011-03-09 2012-09-10 Mta Spa THERMAL EXCHANGE MODULAR SYSTEM FOR COMPRESSED GAS
ITPN20110037A1 (en) * 2011-05-20 2012-11-21 Maurizio Nardini PROCESS AND PROCESS FOR PERFECT COOLING, DEHUMIDIFICATION AND HEATING OF A GAS FLOW
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RU2469152C1 (en) * 2011-05-24 2012-12-10 Вячеслав Александрович Бобровский Plant for water condensation from atmosphere
ITPN20120015A1 (en) * 2012-03-22 2013-09-23 Parker Hannifin S R L DEVELOPED SYSTEM TO DEHUMIDIFY A GAS, IN PARTICULAR COMPRESSED
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EP0711192A1 (en) 1996-05-15
AT398708B (en) 1995-01-25
AU7194294A (en) 1995-02-20
KR960703649A (en) 1996-08-31
ATA148893A (en) 1994-06-15
US5715696A (en) 1998-02-10
JPH09500575A (en) 1997-01-21
CA2168135A1 (en) 1995-02-02
DE59404737D1 (en) 1998-01-15
ATE160705T1 (en) 1997-12-15
EP0711192B1 (en) 1997-12-03
AU673280B2 (en) 1996-10-31

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